This function haven't have prologue/epilogue/cfi directives etc.
Signed-off-by: Dmitry Chestnykh <dm.chestn...@gmail.com>
---
This patch fixes https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98784 .
libc/sysdeps/linux/sparc/Makefile.arch | 2 +-
libc/sysdeps/linux/sparc/sigaction.c | 25 ++---------------------
libc/sysdeps/linux/sparc/sigreturn_stub.S | 14 +++++++++++++
libc/sysdeps/linux/sparc/sysdep.h | 9 ++++++++
4 files changed, 26 insertions(+), 24 deletions(-)
create mode 100644 libc/sysdeps/linux/sparc/sigreturn_stub.S
diff --git a/libc/sysdeps/linux/sparc/Makefile.arch
b/libc/sysdeps/linux/sparc/Makefile.arch
index d34624f36..c9529b344 100644
--- a/libc/sysdeps/linux/sparc/Makefile.arch
+++ b/libc/sysdeps/linux/sparc/Makefile.arch
@@ -6,7 +6,7 @@
#
CSRC-y := brk.c __syscall_error.c sigaction.c
-SSRC-y := __longjmp.S setjmp.S bsd-setjmp.S bsd-_setjmp.S \
+SSRC-y := __longjmp.S setjmp.S sigreturn_stub.S bsd-setjmp.S bsd-_setjmp.S \
syscall.S urem.S udiv.S umul.S sdiv.S rem.S pipe.S fork.S vfork.S
clone.S
CSRC-$(UCLIBC_HAS_CONTEXT_FUNCS) += makecontext.c
diff --git a/libc/sysdeps/linux/sparc/sigaction.c
b/libc/sysdeps/linux/sparc/sigaction.c
index 7895e3acd..447943e3a 100644
--- a/libc/sysdeps/linux/sparc/sigaction.c
+++ b/libc/sysdeps/linux/sparc/sigaction.c
@@ -30,8 +30,8 @@
_syscall5(int, rt_sigaction, int, a, int, b, int, c, int, d, int, e)
-static void __rt_sigreturn_stub(void);
-static void __sigreturn_stub(void);
+void __rt_sigreturn_stub(void);
+void __sigreturn_stub(void);
int __libc_sigaction(int sig, const struct sigaction *act, struct sigaction
*oact)
{
@@ -75,24 +75,3 @@ libc_hidden_weak(sigaction)
# endif
#endif
-
-static void
-__rt_sigreturn_stub(void)
-{
- __asm__(
- "mov %0, %%g1\n\t"
- "ta 0x10\n\t"
- : /* no outputs */
- : "i" (__NR_rt_sigreturn)
- );
-}
-static void
-__sigreturn_stub(void)
-{
- __asm__(
- "mov %0, %%g1\n\t"
- "ta 0x10\n\t"
- : /* no outputs */
- : "i" (__NR_sigreturn)
- );
-}
diff --git a/libc/sysdeps/linux/sparc/sigreturn_stub.S
b/libc/sysdeps/linux/sparc/sigreturn_stub.S
new file mode 100644
index 000000000..33f51409b
--- /dev/null
+++ b/libc/sysdeps/linux/sparc/sigreturn_stub.S
@@ -0,0 +1,14 @@
+#include <sysdep.h>
+
+ nop
+ nop
+
+ENTRY_NOCFI (__rt_sigreturn_stub)
+ mov __NR_rt_sigreturn, %g1
+ ta 0x10
+END_NOCFI (__rt_sigreturn_stub)
+
+ENTRY_NOCFI (__sigreturn_stub)
+ mov __NR_sigreturn, %g1
+ ta 0x10
+END_NOCFI (__sigreturn_stub)
diff --git a/libc/sysdeps/linux/sparc/sysdep.h
b/libc/sysdeps/linux/sparc/sysdep.h
index c3897ec08..761d21454 100644
--- a/libc/sysdeps/linux/sparc/sysdep.h
+++ b/libc/sysdeps/linux/sparc/sysdep.h
@@ -17,6 +17,15 @@
C_LABEL(name) \
cfi_startproc;
+#define ENTRY_NOCFI(name) \
+ .align 4; \
+ .global C_SYMBOL_NAME(name); \
+ .type name, @function; \
+C_LABEL(name)
+
+#define END_NOCFI(name) \
+ .size name, . - name
+
#define END(name) \
cfi_endproc; \
.size name, . - name
--
2.44.0
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